反应详情

温度

140 °C

To a suspension of ethyl 3-oxo-3-(tetrahydro-2H-pyran-4-yl)propanoate (98 mg, 0.49 mmol) in acetic acid (2 mL) was added 3-methyl-4-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}-1H-pyrazol-5-amine (125 mg, 0.46 mmol), prepared as described in Example 1, step a, in microwave reaction vessel. It was sealed and heated with microwave reactor at 140° C. for 40 minutes. The reaction mixture was cooled, diluted with acetic acid (2 mL) and stood for overnight. Precipitate was observed, filtered. Solid was washed with cooled methanol. Solid was dried. The titled compound was obtained. (75 mg, 38%) LC/MS: MS (ES+) m/e 406 (MH+); 1H NMR (400 MHz, DMSO-d6) δ ppm 1.68-1.80 (m, 4H) 2.05 (s, 3H) 2.46 (s, 3H) 2.75 (s, 1H) 3.37 (td, J=11.68, 2.40 Hz, 2H) 3.95 (d, J=14.40 Hz, 2H) 3.99 (s, 2H) 5.57 (s, 1H) 7.00 (d, J=7.33 Hz, 1H) 7.28 (t, J=7.45 Hz, 1H) 7.55 (d, J=7.58 Hz, 1H) 11.59 (d, J=1.01 Hz, 1H).

1. customprepared
2. customin microwave reaction vessel
3. customIt was sealed
4. temperatureThe reaction mixture was cooled
5. filtrationfiltered
6. washSolid was washed with cooled methanol
7. customSolid was dried